CN114607062A - Inertial capacity damping adjustable speed type electromagnetic eddy current inertial damper - Google Patents
Inertial capacity damping adjustable speed type electromagnetic eddy current inertial damper Download PDFInfo
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- CN114607062A CN114607062A CN202210302651.0A CN202210302651A CN114607062A CN 114607062 A CN114607062 A CN 114607062A CN 202210302651 A CN202210302651 A CN 202210302651A CN 114607062 A CN114607062 A CN 114607062A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention relates to a speed type electromagnetic eddy current inertia damper with adjustable inertia capacity damping, which belongs to the technical field of vibration reduction devices and comprises an outer sleeve, a first end cover and a second end cover, wherein the first end cover and the second end cover are respectively covered at two ends of the outer sleeve, a nut is rotatably connected between the first end cover and the second end cover, a screw shaft is arranged in the nut in a threaded fit manner and penetrates through the nut, two ends of the screw shaft respectively penetrate through the first end cover and the second end cover and extend out of the outer sleeve, a first connecting terminal is installed at one end, close to the first end cover, of the screw shaft, a second connecting terminal is installed at one side, far away from the first end cover, of the second end cover, the second connecting terminal covers the outside of the screw shaft, and a volume compensation chamber is formed between the first connecting terminal and the second connecting terminal. The speed type electromagnetic eddy current inertia damper with adjustable inertia capacity damping can realize multistage real-time adjustment of inertia capacity coefficients and damping coefficients in the electromagnetic eddy current inertia damper.
Description
Technical Field
The invention relates to the technical field of vibration reduction devices, in particular to a speed type electromagnetic eddy current inertia damper with adjustable inertia capacity damping.
Background
With the continuous progress of scientific technology, in order to meet the living needs of people, the scale of modern building structures is larger and larger, and super high-rise buildings and large-span structures are increased continuously, so that some traditional vibration reduction technologies are difficult to meet the current vibration reduction needs. The electromagnetic eddy current damper is a novel vibration damper, and is a device which utilizes a conductor plate in a magnetic field to generate eddy current in the conductor plate when cutting a magnetic line of force, and the eddy current can generate a new magnetic field with the direction opposite to that of the original magnetic field, so that a damping force for blocking the relative motion of the original magnetic field and the conductor is formed between the original magnetic field and the conductor. However, since the general electromagnetic eddy current damper is composed of components such as a permanent magnet, a conductor plate, a magnetic yoke plate and the like, the damping force generated by the general electromagnetic eddy current damper does not have the capability of being adjusted, and the development and application of the general electromagnetic eddy current damper are severely restricted.
At present, in order to obtain an adjustable damping force, an electric excitation eddy current mode is mostly adopted, and the strength of a magnetic field is controlled by changing the magnitude of current, so that the magnitude of the damping force is changed. However, this method requires an additional external power source and also generates additional copper consumption during operation. It is therefore important to develop a new type of adjustable electromagnetic eddy current damper.
Disclosure of Invention
The invention aims to provide a speed type electromagnetic eddy current inertia damper with adjustable inertia capacity damping, which solves the problems in the prior art, has simple and practical structure, does not need to add an additional external power supply, can adapt to various working conditions, generates an eddy current magnetic field in an air gap by utilizing a permanent magnet on a driving shear plate and a copper plate on a driven shear plate, further causes the driven shear plate to rotate along with the driving shear plate, and ensures that the first driven shear plate rotates along with the driving shear plate before the second driven shear plate because the friction force generated between the first driven shear plate and the end cover protruding part is different from that generated between the second driven shear plate and the end cover protruding part, thereby realizing the multistage real-time adjustment of the inertia capacity coefficient and the damping coefficient in the electromagnetic eddy current inertia damper.
The above object of the present invention is achieved by the following technical solutions: a speed type electromagnetic eddy current inertia damper with adjustable inertia damping comprises an outer sleeve, a first end cover and a second end cover, wherein the first end cover and the second end cover are respectively covered at two ends of the outer sleeve; the nut is sleeved with the first driven shearing plate and the second driven shearing plate, the first end cover is in contact with the first end cover, the second end cover is in contact with the second end cover, the driving shearing plate is fixedly connected with the nut, the two sides of the driving shearing plate, which are close to the first driven shearing plate and the second driven shearing plate, are provided with a plurality of magnetizing permanent magnets, and one sides of the first driven shearing plate and the second driven shearing plate, which are close to the driving shearing plate, are provided with a plurality of vortex copper plates, an air gap is reserved between the magnetizing permanent magnet and the eddy current copper plate; the friction between the first driven shear plate and the first end cap is less than the friction between the second driven shear plate and the second end cap.
In some embodiments, the nut is rotatably coupled at both ends to the first and second end caps by first and second thrust bearings, respectively.
In some embodiments, the first driven shear plate and the second driven shear plate are each rotationally coupled to the nut by a rotational bearing.
In some embodiments, the side of the first end cap and the side of the second end cap that are close to each other are provided with a protrusion, the cross sections of the first end cap and the second end cap are both T-shaped, the edges of the first driven shear plate and the second driven shear plate are respectively protruded towards the direction of the first end cap and the second end cap, the cross sections of the first driven shear plate and the second driven shear plate are both U-shaped, and the first driven shear plate and the second driven shear plate are respectively buckled on the protrusions of the first end cap and the second end cap; the protrusions of the first driven shear plate and the second driven shear plate are provided with a plurality of magnetizing permanent magnets, and correspondingly, the protrusions of the first end cover, the first end cover body and the inner wall of the outer sleeve are provided with a plurality of eddy current copper plates; the magnetizing permanent magnet with the connection direction between the N pole and the S pole consistent with the axial direction of the screw shaft is an axial magnetizing permanent magnet, the eddy current copper plate matched with the axial magnetizing permanent magnet is an axial eddy current copper plate, the magnetizing permanent magnet with the connection direction between the N pole and the S pole consistent with the radial direction of the screw shaft is a radial magnetizing permanent magnet, and the eddy current copper plate matched with the radial magnetizing permanent magnet is a radial eddy current copper plate.
In some embodiments, the magnetic poles of adjacent magnetizing permanent magnets are opposite in direction.
In some embodiments, the distance between the active shear plate and the first and second driven shear plates is adjustable for adjusting the size of the air gap.
In some embodiments, the outer sleeve, the first end cap, the second end cap, the screw shaft, and the nut are all of a non-magnetically conductive material, and the driving shear plate, the first driven shear plate, and the second driven shear plate are all of a magnetically conductive material.
In some embodiments, a first friction material is disposed on a contact surface of the first driven shear plate with the first end cap and a second friction material is disposed on a contact surface of the second driven shear plate with the second end cap.
In conclusion, the invention has the following beneficial effects:
the invention relates to a speed type electromagnetic eddy current inertial damper with adjustable inertial volume damping, which is characterized in that an eddy current magnetic field is generated in an air gap by utilizing a permanent magnet on a driving shear plate and a copper plate on a driven shear plate, so that the driven shear plate rotates along with the driving shear plate, and the first driven shear plate rotates along with the driving shear plate before the second driven shear plate due to different friction forces generated between the first driven shear plate and the second driven shear plate and a part, protruding to a built-in cavity, of an end cover, so that the multistage real-time adjustment of an inertial volume coefficient and a damping coefficient in the electromagnetic eddy current inertial damper is realized. And the size of an air gap between the driving shear plate and the first driven shear plate and the size of an air gap between the driving shear plate and the second driven shear plate can be changed, so that eddy damping force generated between the driving shear plate and the first driven shear plate and between the driving shear plate and the second driven shear plate are different, the first driven shear plate rotates along with the driving shear plate than the second driven shear plate, and therefore multistage real-time adjustment of the inertial volume coefficient and the damping coefficient in the electromagnetic eddy inertia damper is achieved.
Drawings
FIG. 1 is a cross-sectional structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of the present invention;
FIG. 3 is a schematic view of the arrangement of radially magnetized permanent magnets on a first driven shear plate according to the present invention;
fig. 4 is a schematic view of the arrangement of axially magnetized permanent magnets on the active shear plate of the present invention.
In the figure: 1. an outer sleeve; 2. a first end cap; 3. a second end cap; 4. a screw shaft; 5. a first thrust bearing; 6. a second thrust bearing; 7. a volume compensation chamber; 8. a nut; 9. an active shear plate; 10. a first driven shear plate; 11. a second driven shear plate; 12. a first connection terminal; 13. a second connection terminal; 14. an axial vortex copper plate; 15. a radial vortex copper plate; 16. an axially magnetized permanent magnet; 17. a radially magnetized permanent magnet; 18. a first friction material; 19. a rotating bearing; 20. an air gap; 21. a second friction material.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-4, a speed type electromagnetic eddy current inertial damper with adjustable inertial volume damping comprises an outer sleeve 1, and a first end cover 2 and a second end cover 3 respectively covering two ends of the outer sleeve 1, wherein a nut 8 is rotatably connected between the first end cover 2 and the second end cover 3, in order to reduce the resistance of the nut 8 in rotation, two ends of the nut 8 can be respectively rotatably connected with the first end cover 2 and the second end cover 3 through a first thrust bearing 5 and a second thrust bearing 6, the nut 8 is in threaded fit and is provided with a screw shaft 4 in a penetrating manner, two ends of the screw shaft 4 respectively penetrate through the first end cover 2 and the second end cover 3 and extend out of the outer sleeve 1, one end of the screw shaft 4 close to the first end cover 2 is provided with a first connection terminal 12, one side of the second end cover 3 far away from the first end cover 2 is provided with a second connection terminal 13, the second connection terminal 13 covers the screw shaft 4, a volume compensation chamber 7 is formed between the two, when the screw shaft 4 moves in the nut 8, the axial linear motion of the screw shaft 4 is converted into the rotary motion of the nut 8 under the action of the screw thread, and the volume compensation chamber 7 plays a role of providing sufficient moving space for the screw shaft 4;
the speed type electromagnetic eddy current inertia damper with adjustable inertia capacity damping further comprises a first driven shear plate 10, a second driven shear plate 11 and a driving shear plate 9 arranged between the first driven shear plate 10 and the second driven shear plate 11, wherein the first driven shear plate 10 and the second driven shear plate 11 are both sleeved on a nut 8 and are both arranged between a first end cover 2 and a second end cover 3, the first driven shear plate 10 and the second driven shear plate 11 are both rotatably connected with the nut 8, optionally, the first driven shear plate 10 and the second driven shear plate 11 can be both rotatably connected on the nut 8 through a rotating bearing 19, the first driven shear plate 10 is mutually contacted with the first end cover 2, the second driven shear plate 11 is mutually contacted with the second end cover 3, the driving shear plate 9 is fixedly connected with the nut 8, two sides of the driving shear plate 9, which are close to the first driven shear plate 10 and the second driven shear plate 11, are both provided with a plurality of magnetizing permanent magnets, the first driven shear plate 10 and the second driven shear plate 11 are respectively provided with a plurality of eddy copper plates on one side close to the driving shear plate 9, an air gap 20 is reserved between the magnetizing permanent magnet and the eddy copper plates, in some embodiments, the distance between the driving shear plate 9 and the first driven shear plate 10 and the distance between the driving shear plate 11 and the second driven shear plate 11 are adjustable and are used for adjusting the size of the air gap 20, in other embodiments, in order to enhance the electromagnetic turbine effect, the side close to each other of the first end cover 2 and the second end cover 3 are respectively provided with a bulge, the cross sections of the first driven shear plate 10 and the second driven shear plate 11 are both in a T shape, the edges of the first driven shear plate 10 and the second driven shear plate 11 are respectively bulged towards the first end cover 2 and the second end cover 3, the cross sections of the first driven shear plate 10 and the second driven shear plate 11 are both in a U shape, and the first driven shear plate 10 and the second driven shear plate 11 are respectively buckled on the bulges of the first end cover 2 and the second end cover 3; the protrusions of the first driven shear plate 10 and the second driven shear plate 11 are provided with a plurality of magnetizing permanent magnets, and correspondingly, the protrusions of the first end cover 2, the body of the first end cover 2 and the inner wall of the outer sleeve 1 are provided with a plurality of eddy current copper plates; the magnetizing permanent magnet with the connecting line direction between the N pole and the S pole consistent with the axial direction of the screw shaft 4 is an axial magnetizing permanent magnet 16, the eddy current copper plate matched with the axial magnetizing permanent magnet 16 is an axial eddy current copper plate 14, the magnetizing permanent magnet with the connecting line direction between the N pole and the S pole consistent with the radial direction of the screw shaft 4 is a radial magnetizing permanent magnet 17, the eddy current copper plate matched with the radial magnetizing permanent magnet 17 is a radial eddy current copper plate 15, and in order to further strengthen the electromagnetic turbine effect, the magnetic pole directions of the adjacent magnetizing permanent magnets are opposite; in order to realize multistage real-time adjustment of the inertia capacity coefficient and the damping coefficient in the electromagnetic eddy current inertia damper, the friction force between the first driven shear plate 10 and the first end cover 2 can be smaller than the friction force between the second driven shear plate 11 and the second end cover 3, in order to adjust the friction force, a first friction material 18 can be arranged on the contact surface of the first driven shear plate 10 and the first end cover 2, a second friction material 21 is arranged on the contact surface of the second driven shear plate 11 and the second end cover 3, and the friction force between the first driven shear plate 10 and the first end cover 2 and between the second driven shear plate 11 and the second end cover 3 can be adjusted by replacing different friction materials.
The invention preferably adopts the technical scheme that the screw shaft 4 drives the driving shearing plate 9 to rotate, eddy current damping force is generated between the magnetized permanent magnets on the surfaces of the two sides of the driving shearing plate 9, the eddy current copper plate on the side, close to the driving shearing plate 9, of the first driven shearing plate 10 and the eddy current copper plate on the side, close to the driving shearing plate 9, of the second driven shearing plate 11, when the eddy current damping force is smaller than the frictional force generated between the first friction material 18 fixedly connected with the surface of the horizontal side, close to the first driven shearing plate 10, of the first end cover 2 protruding towards the built-in cavity part and the first friction material 18 fixedly connected with the surface of the horizontal side, close to the first end cover 2 protruding towards the built-in cavity part, of the first driven shearing plate 10 and the surface of the horizontal part of the first driven shearing plate 10, and the eddy current damping force is also smaller than the frictional force generated between the second friction material 21 fixedly connected with the surface of the horizontal side, close to the horizontal side of the second driven shearing plate 11, close to the second end cover 3 protruding towards the built-in cavity part and the side of the second end cover 3 protruding towards the built-in cavity part The first driven shear plate 10 and the second driven shear plate 11 are relatively immovable by the frictional force generated between the fixedly connected second friction materials 21. Therefore, eddy current damping is generated between the driving shear plate 9 and the first and second driven shear plates 10 and 11, thereby providing a first order inertance coefficient and a first order damping coefficient.
The invention preferably adopts the technical scheme that the screw shaft 4 drives the driving shear plate 9 to rotate, eddy current damping force is generated between the magnetized permanent magnets on the surfaces of the two sides of the driving shear plate 9, the eddy current copper plate on the side, close to the driving shear plate 9, of the first driven shear plate 10 and the eddy current copper plate on the side, close to the driving shear plate 9, of the second driven shear plate 11, when the eddy current damping force is greater than the frictional force generated between the first friction material 18 fixedly connected with the surface of the part, protruding to the built-in cavity, of the first end cover 2 and close to the horizontal side of the first driven shear plate 10 and the first friction material 18 fixedly connected with the surface of the part, close to the horizontal side of the first end cover 2 and protruding to the built-in cavity, of the horizontal part of the first driven shear plate 10, but is smaller than the frictional force generated between the second friction material 21 fixedly connected with the surface, protruding to the part, protruding to the built-in cavity, of the second end cover 3 and close to the horizontal side of the second driven shear plate 11, fixedly connected with the surface of the horizontal part of the second end cover 3 and protruding to the side of the built-in cavity The second driven shear plate 11 is relatively stationary and the first driven shear plate 10 rotates with the driving shear plate 9, due to the friction created between the materials 21. Eddy current damping is thus generated between the driving shear plate 9 and the second driven shear plate 11 and between the first driven shear plate 10 and the first end cap 2, providing a second order inertance coefficient and a second order damping coefficient.
The invention preferably adopts the technical scheme that the screw shaft 4 drives the driving shear plate 9 to rotate, eddy damping is generated between the magnetized permanent magnets on the surfaces of the two sides of the driving shear plate 9, the eddy copper plate on the side, close to the driving shear plate 9, of the first driven shear plate 10 and the eddy copper plate on the side, close to the driving shear plate 9, of the second driven shear plate 11, when the eddy damping force is greater than the frictional force generated between the first friction material 18 fixedly connected with the surface of the horizontal side, close to the first driven shear plate 10, of the part, protruding to the built-in cavity, of the first end cover 2 and the first friction material 18 fixedly connected with the surface of the horizontal part, close to the horizontal side, of the first driven shear plate 10, of the first driven shear plate 2 and the surface of the part, protruding to the built-in cavity, of the second end cover 3 and fixedly connected with the surface of the horizontal side, close to the second end cover 3, of the second driven shear plate 11, of the eddy damping force is also greater than the frictional force The first driven shear plate 10 and the second driven shear plate 11 rotate together with the driving shear plate 9, when friction is generated between the connected second friction materials 21. Eddy current damping is thus generated between the first driven shear plate 10 and the first end cap 2 and between the second driven shear plate 11 and the second end cap 3, thereby providing a third order coefficient of inertia and a third order damping coefficient
The preferable technical scheme of the invention is that the invention can also change the size of the air gap 20 between the driving shear plate 9 and the first and second driven shear plates 10 and 11, so that the eddy current damping force generated between the driving shear plate 9 and the first and second driven shear plates 10 and 11 is different, and the first driven shear plate 10 rotates along with the driving shear plate 9 earlier than the second driven shear plate 11, thereby realizing the multistage real-time adjustment of the inertia capacitance coefficient and the damping coefficient in the electromagnetic eddy current inertia damper.
In order to avoid electromagnetic interference, the outer sleeve 1, the transmission shaft assembly (i.e. the screw shaft 4, the nut 8 and the bearings), the first end cover 2 and the second end cover 3 are all made of non-magnetic conductive materials; the driving shear plate 9, the first driven shear plate 10 and the second driven shear plate 11 are all made of magnetic conductive and electric conductive materials.
The invention has the preferable technical scheme that the driving shear plate 9 is of a disc-shaped structure, and the first driven shear plate 10 and the second driven shear plate 11 are both formed by combining the disc-shaped structure and a circular ring-shaped structure; the two side surfaces of the upper part and the lower part of the built-in cavity of the outer sleeve 1 are respectively provided with a vortex copper plate with a circular ring structure; the surface of one side of a built-in cavity of the first end cover 2 is provided with a vortex copper plate with a circular ring structure, the surface of one side, which is protruded towards the built-in cavity and close to the vertical side of the first driven shear plate 10, is provided with a vortex copper plate with a circular ring structure, and the surface of one side, which is protruded towards the built-in cavity and close to the horizontal side of the first driven shear plate 10, is provided with a first friction material 18 with a circular ring structure; a vortex copper plate with a circular ring-shaped structure is arranged on the surface of one side of a built-in cavity of the second end cover 3, a vortex copper plate with a circular ring-shaped structure is arranged on the surface of one side, close to the vertical side of the second driven shear plate 11, of the part protruding towards the built-in cavity, and a second friction material 21 with a circular ring-shaped structure is arranged on the surface of one side, close to the horizontal side of the second driven shear plate 11, of the part protruding towards the built-in cavity; the surfaces of two sides of the active shear plate 9 are respectively provided with 6 permanent magnets, and the magnetic poles of the adjacent permanent magnets are opposite in direction and are vertical to the main plane of the disc of the active shear plate 9; the three side surfaces of the vertical part of the first driven shear plate 10 are provided with 6 permanent magnets, the magnetic poles of the adjacent permanent magnets are opposite and are vertical to the main plane of the vertical part of the first driven shear plate 10, the surface of the horizontal part of the first driven shear plate 10, which is close to one side of the driving shear plate 9, is provided with an eddy current copper plate with a circular structure, and the surface of the horizontal part of the first driven shear plate 10, which is close to one side of the first end cover 2, which protrudes towards the built-in cavity part, is provided with a first friction material 18 with a circular structure; the surfaces of three sides of the vertical part of the second driven shear plate 11 are provided with 6 permanent magnets, the magnetic poles of the adjacent permanent magnets are opposite and are perpendicular to the main plane of the vertical part of the first driven shear plate 10, the surface of one side, close to the driving shear plate 9, of the horizontal part of the second driven shear plate 11 is provided with an eddy copper plate with a circular ring structure, and the surface of one side, close to the second end cover 3, of the horizontal part of the second driven shear plate 11, protruding towards the built-in cavity part, is provided with a second friction material 21 with a circular ring structure.
In some embodiments, the outer sleeve 1, the first end cap 2, the second end cap 3, the threaded shaft 4, and the nut 8 are all non-magnetically conductive material, and the driving shear plate 9, the first driven shear plate 10, and the second driven shear plate 11 are all magnetically conductive material.
Generally, the invention relates to a speed type electromagnetic eddy current inertia damper with adjustable inertia capacity damping, which generates an electric eddy current magnetic field in an air gap 20 by utilizing a permanent magnet on a driving shear plate 9 and a copper plate on a driven shear plate, further causes the driven shear plate to rotate along with the driving shear plate 9, and enables the first driven shear plate 10 to rotate along with the driving shear plate 9 before the second driven shear plate 11 because the friction force generated between the first driven shear plate 10 and the second driven shear plate 11 and a part of an end cover protruding towards a built-in cavity (namely a convex part on the end cover) is different, thereby realizing the multistage real-time adjustment of the inertia capacity coefficient and the damping coefficient in the electromagnetic eddy current inertia damper. And the size of the air gap 20 between the driving shear plate 9 and the first driven shear plate 10 and the second driven shear plate 11 can be changed, so that eddy damping forces generated between the driving shear plate 9 and the first driven shear plate 10 and the second driven shear plate 11 are different, the first driven shear plate 10 rotates along with the driving shear plate 9 earlier than the second driven shear plate 11, and multi-stage real-time adjustment of the inertia capacitance coefficient and the damping coefficient in the electromagnetic eddy inertia damper is realized.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. Be used to hold damping adjustable speed type electromagnetic vortex inertial damper, its characterized in that:
comprises an outer sleeve (1) and a first end cover (2) and a second end cover (3) which are respectively covered at two ends of the outer sleeve (1), a nut (8) is rotatably connected between the first end cover (2) and the second end cover (3), the nut (8) is in internal thread fit and is provided with a screw shaft (4) in a penetrating way, two ends of the screw shaft (4) respectively penetrate through the first end cover (2) and the second end cover (3) and extend out of the outer sleeve (1), one end of the screw shaft (4) close to the first end cover (2) is provided with a first connecting terminal (12), a second connecting terminal (13) is arranged on one side of the second end cover (3) far away from the first end cover (2), the second connecting terminal (13) covers the outside of the screw shaft (4), and a volume compensation chamber (7) is formed between the second connecting terminal and the screw shaft;
the permanent magnet synchronous motor further comprises a first driven shear plate (10), a second driven shear plate (11) and a driving shear plate (9) arranged between the first driven shear plate (10) and the second driven shear plate (11), wherein the three are sleeved on the nut (8) and arranged between the first end cover (2) and the second end cover (3), the first driven shear plate (10) and the second driven shear plate (11) are rotationally connected with the nut (8), the first driven shear plate (10) is in contact with the first end cover (2), the second driven shear plate (11) is in contact with the second end cover (3), the driving shear plate (9) is fixedly connected with the nut (8), the driving shear plate (9) is close to the two sides of the first driven shear plate (10) and the second driven shear plate (11) and is provided with a plurality of magnetizing permanent magnets, a plurality of eddy current copper plates are arranged on one sides, close to the driving shear plate (9), of the first driven shear plate (10) and the second driven shear plate (11), and an air gap (20) is reserved between the magnetizing permanent magnet and the eddy current copper plates;
the friction between the first driven shear plate (10) and the first end cap (2) is less than the friction between the second driven shear plate (11) and the second end cap (3).
2. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: and two ends of the nut (8) are respectively connected with the first end cover (2) and the second end cover (3) in a rotating way through a first thrust bearing (5) and a second thrust bearing (6).
3. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: the first driven shear plate (10) and the second driven shear plate (11) are both rotationally connected to the nut (8) by means of a rotational bearing (19).
4. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: the side, close to each other, of each of the first end cover (2) and the second end cover (3) is provided with a protrusion, the cross sections of the first end cover and the second end cover are both T-shaped, the edges of the first driven shear plate (10) and the second driven shear plate (11) are protruded towards the direction of the first end cover (2) and the direction of the second end cover (3), the cross sections of the first driven shear plate and the second driven shear plate are both U-shaped, and the first driven shear plate (10) and the second driven shear plate (11) are buckled on the protrusions of the first end cover (2) and the second end cover (3) respectively;
the protrusions of the first driven shear plate (10) and the second driven shear plate (11) are respectively provided with a plurality of magnetizing permanent magnets, and correspondingly, the protrusions of the first end cover (2), the body of the first end cover (2) and the inner wall of the outer sleeve (1) are respectively provided with a plurality of eddy current copper plates;
the connecting line direction between the N pole and the S pole is consistent with the axial direction of the screw shaft (4), the magnetizing permanent magnet is an axial magnetizing permanent magnet (16), the axial magnetizing permanent magnet (16) is matched with the use vortex copper plate which is an axial vortex copper plate (14), the connecting line direction between the N pole and the S pole is consistent with the radial direction of the screw shaft (4), the magnetizing permanent magnet is a radial magnetizing permanent magnet (17), and the radial magnetizing permanent magnet (17) is matched with the use vortex copper plate which is a radial vortex copper plate (15).
5. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: the magnetic pole directions of the adjacent magnetizing permanent magnets are opposite.
6. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: the distance between the driving shear plate (9) and the first driven shear plate (10) and the second driven shear plate (11) is adjustable, and the distance is used for adjusting the size of the air gap (20).
7. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: the outer sleeve (1), the first end cover (2), the second end cover (3), the screw shaft (4) and the nut (8) are made of non-magnetic conductive materials, and the driving shear plate (9), the first driven shear plate (10) and the second driven shear plate (11) are made of magnetic conductive materials.
8. The inertial volume damping adjustable velocity type electromagnetic eddy current inertial damper of claim 1, wherein: the first driven shear plate (10) is provided with a first friction material (18) on the contact surface of the first end cover (2), and the second driven shear plate (11) is provided with a second friction material (21) on the contact surface of the second end cover (3).
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01216138A (en) * | 1988-02-24 | 1989-08-30 | Sanwa Tekki Corp | Magnetic adjusting type vibration suppressing device |
| JPH07167192A (en) * | 1993-12-16 | 1995-07-04 | Toyota Motor Corp | Variable damping force shock absorber |
| JP2000320607A (en) * | 1999-05-14 | 2000-11-24 | Kumagai Gumi Co Ltd | Eddy current type damper |
| CN104265818A (en) * | 2014-09-15 | 2015-01-07 | 陈政清 | Outer cup rotary axial eddy current damper |
| WO2015139404A1 (en) * | 2014-03-21 | 2015-09-24 | 陈政清 | Axial eddy-current damping device based on helical transmission mode |
| US20150345134A1 (en) * | 2012-12-27 | 2015-12-03 | Kozo Keikaku Engineering Inc. | Damping device and vibration control apparatus for structure |
| CN106402228A (en) * | 2016-11-30 | 2017-02-15 | 浙江建科减震科技有限公司 | Electromagnetic eddy rotating damper |
| CN109972762A (en) * | 2019-04-30 | 2019-07-05 | 湖南科技大学 | A kind of used matter damper of tuner-type electromagnetism |
| CN110805348A (en) * | 2019-11-22 | 2020-02-18 | 河南理工大学 | Self-resetting rotary inertia capacity damper |
| CN111188868A (en) * | 2020-02-21 | 2020-05-22 | 华东交通大学 | Magnetorheological multistage adjustable inertia capacitance variable damping device |
| CN111335497A (en) * | 2020-03-24 | 2020-06-26 | 华东交通大学 | Electromagnetic multistage adjustable inertia capacitance variable damping device |
| CN214465762U (en) * | 2021-03-12 | 2021-10-22 | 华东交通大学 | Comb-tooth-shaped cup-shaped eddy current damper |
| CN214788737U (en) * | 2021-03-15 | 2021-11-19 | 华东交通大学 | double-I-shaped combined eddy current damper |
-
2022
- 2022-03-24 CN CN202210302651.0A patent/CN114607062B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01216138A (en) * | 1988-02-24 | 1989-08-30 | Sanwa Tekki Corp | Magnetic adjusting type vibration suppressing device |
| JPH07167192A (en) * | 1993-12-16 | 1995-07-04 | Toyota Motor Corp | Variable damping force shock absorber |
| JP2000320607A (en) * | 1999-05-14 | 2000-11-24 | Kumagai Gumi Co Ltd | Eddy current type damper |
| US20150345134A1 (en) * | 2012-12-27 | 2015-12-03 | Kozo Keikaku Engineering Inc. | Damping device and vibration control apparatus for structure |
| WO2015139404A1 (en) * | 2014-03-21 | 2015-09-24 | 陈政清 | Axial eddy-current damping device based on helical transmission mode |
| CN104265818A (en) * | 2014-09-15 | 2015-01-07 | 陈政清 | Outer cup rotary axial eddy current damper |
| CN106402228A (en) * | 2016-11-30 | 2017-02-15 | 浙江建科减震科技有限公司 | Electromagnetic eddy rotating damper |
| CN109972762A (en) * | 2019-04-30 | 2019-07-05 | 湖南科技大学 | A kind of used matter damper of tuner-type electromagnetism |
| CN110805348A (en) * | 2019-11-22 | 2020-02-18 | 河南理工大学 | Self-resetting rotary inertia capacity damper |
| CN111188868A (en) * | 2020-02-21 | 2020-05-22 | 华东交通大学 | Magnetorheological multistage adjustable inertia capacitance variable damping device |
| CN111335497A (en) * | 2020-03-24 | 2020-06-26 | 华东交通大学 | Electromagnetic multistage adjustable inertia capacitance variable damping device |
| CN214465762U (en) * | 2021-03-12 | 2021-10-22 | 华东交通大学 | Comb-tooth-shaped cup-shaped eddy current damper |
| CN214788737U (en) * | 2021-03-15 | 2021-11-19 | 华东交通大学 | double-I-shaped combined eddy current damper |
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|---|---|
| CN114607062B (en) | 2023-06-06 |
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